CVE-2010-4020

MIT Kerberos 5 (aka krb5) 1.8.x through 1.8.3 does not reject RC4 key-derivation checksums, which might allow remote authenticated users to forge a (1) AD-SIGNEDPATH or (2) AD-KDC-ISSUED signature, and possibly gain privileges, by leveraging the small key space that results from certain one-byte stream-cipher operations.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
6.3 MEDIUM
NETWORK
LOW
LOW
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 66%
VendorProductVersion
mitkerberos_5
1.8
mitkerberos_5
1.8.1
mitkerberos_5
1.8.2
mitkerberos_5
1.8.3
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
krb5
bullseye (security)
1.18.3-6+deb11u5
fixed
bullseye
1.18.3-6+deb11u5
fixed
lenny
not-affected
bookworm
1.20.1-2+deb12u2
fixed
bookworm (security)
1.20.1-2+deb12u2
fixed
sid
1.21.3-3
fixed
trixie
1.21.3-3
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
krb5
maverick
Fixed 1.8.1+dfsg-5ubuntu0.2
released
lucid
Fixed 1.8.1+dfsg-2ubuntu0.4
released
karmic
not-affected
hardy
not-affected
dapper
not-affected
Common Weakness Enumeration
References